Air-inlet device.



W. HAMNER.

AIR. INLET DEVICE.

APPLICATION FILED DEG. 9, 1911.

1,050,214, Patented Jan.14,1913.

WW: I I I "UNITED STA'MENT oFFIoE. 1

WILLIAM HENRY HAMNER, F LdS ANGELES, CALIFORNIA.

AIR-INLET DEVICE.

I to be attached to the inlet pipe of an internal combustion engine between the carbuiBter and inlet valve, and the object of the invention is to enable the introduction of air into the induction pipe to combine with the mixture therein and thereby increase the power and reduce the amount of gaso- Iene required.

A further object is to provide for shutting the air inlet device so that it will not peermit air to enter the induction pipe, this ing specially desirable when cranking the engine.

A further object is to permit of the introduction of kerosene or other decarbonizing agent into the engine.

Referring to the drawings :Figure 1 is a side view of the device. Fig. 2 is a vertical section through the device. Fig. 3 is a "side elevation in detail of the shut-off valve.

Fig. 4 is a side elevation in detail on an enlarged scale of the automatic valve.

1 designates a valve chamber which, as clearly shown in Fig. 2, is tapered internally throughout its lower portion and provided with an inwardly directed'shoulder 2 at the bottom. Loosely mounted in the valve chamber 1 is a conical valve 3 which normally rests on the shoulder 2 and has a projection 4 extending through the air inlet opening 5 in the bottom of the valve chamber 1. A plug 6 is screwed in the upper end of the valve chamber 1 and a screw 7 ex tends through the plug 6 and serves as an adjustable stop to limit. the up ard movement of the valve 3.

Extending at right angles fromflthe valve chamber 1 is a stem 8 having a shut-oft valve 9, the latter having an orifice 10 and pins 11 and 12 adapted to strike against shoulders 13 on the stem 8. The valve 9 also has a crank arm 14 to which a rod or Patented J an. 14, 1913.

wire 15 may be connected and which may extend to'a convenient point on the dashboard of the automobile, or on the steering wheel, not shown. The stem 8 has a threaded portion 16 adapted to be screwed into the induction pipe, not shown, and a hollow distributing drum 17 communicates with the stem 8 and is provided with a series of perforations 18 in its lower portion so that air which is sucked in will ,pass downwardly out of the drum 17 and thereby become more perfectly intermixed with the mixture in the induction pipe than if the air were permitted to escape at the top of the drum.

, The suction of the engine acting through the stem 8 lifts the valve 3 and draws air through the air inlet 5, thence through the stem 8, thence through the perforations 18 into the induction pipe where it combines with the mixture in the induction pipe, and thence passes into the engine. The amount of air thus permitted to enter may be regulated by adjusting the screw 7 to regulate the vertical movement of the valve 3. In

cranking the engine the back pressure which enters the device is held from passing out by the valve 3 which automatically closes.

If it be desired to entirely shut off the device so that no aircan enter the induction pipe the valve 9 may be turned into the position shown in Fig. 2 so that the passage 10 extends transversely to the stem 8. If it be desired to introduce kerosene or other decarloonizing agent into theengine a vessel containing it may be placed at the air inlet 5.so that the suction from the engine will draw the same through the valve chamber 1 and stem 8 into the cylinder.

What I claim is An attachment for motor vehicle engines, comprising a vertical valve chamber with an air inlet at its lower end and formed with a valve seat at the air inlet, a weighted valve normally resting on said seat, a plug screwed in the upper end of the valve chamber, an adjusting screw extending through said plug with its end near the valve to limit the upward movement of the valve, a stem extending transversely from the valve chamber, a perforated distributing drum on the In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 2d day of December 1911.

WILLIAM HENRY HAMNER.

In presence 0f- G. F. HACKLEY, GLADYS RUSSELL.

end the stem, said stern being externally threaded for attachment to the induction pipe, :1 shukefi valve in said stem bet-Ween the threadeci. portion of the stem and valve chamber, and a connection attached to the shutoff Valve zinc adapted to extend 0 a eenvenient point .011 the motor vehicle.

@mpies 01 this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G. 

